Instruction Manual
Table Of Contents
- CRD4299-1 AMR: CrystalClear™ AC '97 AMR Reference Design
- Features
- Description
- TABLE OF CONTENTS
- LIST OF FIGURES
- LIST OF TABLES
- Contacting Cirrus Logic Support
- 1. GENERAL INFORMATION
- 2. REFERENCE DESIGN FEATURES
- 3. SCHEMATIC DESCRIPTION
- 4. GROUNDING AND LAYOUT
- 5. AUDIO PERFORMANCE EVALUATION
- Table 1. Reference Designators
- Table 2. Microphone Support Specifications
- Table 3. Full Duplex Specifications
- Table 4. Analog Mixer, Line In to Line Out Specifications
- Table 5. Analog Mixer, Mic In to Line Out Specifications
- 5.1 Plots
- Figure 1. Full Duplex (A-D-PC-D-A): Line In/Out Frequency Response
- Figure 2. Full Duplex (A-D-PC-D-A): Line In/Out Dynamic Range
- Figure 3. Full Duplex (A-D-PC-D-A): Line In/Out THD+N vs. Frequency
- Figure 4. Analog Mixer (A-A): Line In/Out Frequency Response
- Figure 5. Analog Mixer (A-A): Line In/Out Dynamic Range
- Figure 6. Analog Mixer (A-A): Line In/Out THD+N vs. Frequency
- Figure 7. Analog Mixer (A-A): Mic In/Line Out Frequency Response
- Figure 8. Analog Mixer (A-A): Mic In/Line Out Dynamic Range
- Figure 9. Analog Mixer (A-A): Mic In/Line Out THD+N vs. Frequency
- Figure 10. Analog Mixer (A-A): Line In/Out Crosstalk vs. Frequency
- 6. REFERENCES
- 7. SCHEMATIC, LAYOUT, AND BRACKET DRAWINGS
- 8. BILL OF MATERIALS
CRD4299-1 AMR
22 DS319RD1A1
HEADPHONE JACK
LINE OUT
JACK
Connect CGND to
AGND at the
jack
Connect CGND to
AGND at the
jack
Digital Output
CGND
AGND
CGND
AGND
AGND
+12VA
+12VA
AGND
AGND
-12VA
-12VA
+5VD
DGND
DGND
DGND
R37 10
1/4W
R38 10
1/4W
+
-
U2A
MC1458
3
2
1
8 4
+
-
U2B
MC1458
5
6
7
8 4
R35 27K
R36 56K
R43
100K
C44
220pF
C45
220pF
C48
220pF
C49
220pF
R39 27K
R40 56K
J9
PHONO-1/8
4
3
5
2
1
J7
PHONO-1/8
4
3
5
2
1
R44
100K
C50
0.1uF
Z5U
J10
TOTX-173
1
2
3
4
5
6
R49
8.2K
+
C40 10uF
ELEC
+
C42 10uF
ELEC
+
C46 10uF
ELEC
+
C47 10uF
ELEC
C41 22pF
NPO
C43 22pF
NPO
ALT_LINE_O UT_L
ALT_LINE_OUT _R
LINE_OUT_R
LINE_OUT_L
SPDIF_OUT
Figure 17. Mic Pre-Amp